In article unknown pages of history of struggle between Russia, Poland and Sweden in the Time of Troubles are considered. For the first time voivode and diplomat Semeon Gavrilovich Korobyin’s detailed biography is presented. He participated in the revolt of Bolotnikov, and then has come over to the side of Vasily Shuisky, battled against Lzhedmitrij II, released Moscow from Poles in 1611–1612.
